And sources tell Star magazine the actors, who were introduced by mutual friends, are getting serious. An insider says: "Ashley's really falling for Brock, and he's just as into her... It's new, but she thinks it could be the real thing."

Greene was previously forced to deny a romance with her co-star Kellan Lutz, saying "I like having him to talk to about other guys to get that male perspective. I really cherish our relationship, so I wouldn't want to mess that up by dating."